Synthesis, crystal structures and optical properties of two congruent-melting isotypic diphosphates: LiM3P2O7 (M = Na, K)

被引：53

作者：

Shi, Yunjing ^{[1
,2
]}

Wang, Ying ^{[1
,2
]}

Pan, Shilie ^{[1
]}

Yang, Zhihua ^{[1
]}

Dong, Xiaoyu ^{[1
,2
]}

Wu, Hongping ^{[1
]}

Zhang, Min ^{[1
,2
]}

Cao, Jian ^{[1
,2
]}

Zhou, Zhongxiang ^{[1
]}

机构：

[1] Chinese Acad Sci, Xinjiang Tech Inst Phys & Chem, Xinjiang Key Lab Elect Informat Mat & Devices, Urumqi 830011, Peoples R China

[2] Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China

来源：

JOURNAL OF SOLID STATE CHEMISTRY | 2013年 / 197卷

基金：

中国国家自然科学基金;

关键词：

LiNa3P2O7; LiK3P2O7; Crystal structures; X-ray diffraction; Thermal analyses; PHOSPHATE; LITHIUM; POLYPHOSPHATE; GROWTH; GENERATION;

D O I：

10.1016/j.jssc.2012.08.038

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Two new isotypic diphosphates, LiNa3P2O7 (1) and LiK3P2O7 (2), have been synthesized by conventional solid-state reaction. The single-crystal X-ray structural analyses have shown that they crystallize in the orthorhombic space group C222(1) (No. 20) with the unit cells: a=5.4966(2) angstrom, b=9.1365(4) angstrom, c=12.2764(5) angstrom for compound 1 and a=6.0373(14) angstrom, b=9.339(2) angstrom, c=13.292(3) angstrom for compound 2. The LiM3P2O7 (M = Na, K) consist of two-dimensional [LiP2O7](3-) layers, which are composed by LiO4 tetrahedral and diphosphate groups, the Na or K atoms are filled in the interlayers and balance the charge. Second harmonic generation (SHG) on powder samples have been measured using Kurtz and Perry techniques. Thermal analyses, IR spectroscopy, UV-vis-NIR diffuse reflectance spectra, and band structure calculations are performed on the reported compounds. Crown Copyright (C) 2012 Published by Elsevier Inc. All rights reserved.

引用

页码：128 / 133

页数：6

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